// Licensed to the Apache Software Foundation (ASF) under one
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// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
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package org.apache.impala.service.catalogmanager;

import org.apache.impala.catalog.FeCatalog;
import org.apache.impala.thrift.TUpdateCatalogCacheRequest;
import org.apache.impala.thrift.TUpdateCatalogCacheResponse;

/**
 * Implementation which returns a provided catalog instance, used by tests. No updates
 * from the statestore are permitted.
 */
class TestImpl extends FeCatalogManager {

  private final FeCatalog catalog_;

  TestImpl(FeCatalog catalog) {
    catalog_ = catalog;
  }

  @Override
  public FeCatalog getOrCreateCatalog() {
    return catalog_;
  }

  @Override
  public TUpdateCatalogCacheResponse updateCatalogCache(TUpdateCatalogCacheRequest req) {
    throw new IllegalStateException(
        "Unexpected call to updateCatalogCache() with a test catalog instance");
  }
}
